JOM KITA KE POLITEKNIK

Variability in X-ray induced effects in [Rh(COD)Cl](2) with changing experimental parameters† (Record no. 918)

MARC details
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Personal name Fernando, Nathalie K.
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9 (RLIN) 2452
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Title Variability in X-ray induced effects in [Rh(COD)Cl](2) with changing experimental parameters†
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Date of publication, distribution, etc. 2022-11-30.
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General note /pmc/articles/PMC7614095/
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General note /pubmed/36399064
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Summary, etc. X-ray characterisation methods have undoubtedly enabled cutting-edge advances in all aspects of materials research. Despite the enormous breadth of information that can be extracted from these techniques, the challenge of radiation-induced sample change and damage remains prevalent. This is largely due to the emergence of modern, high-intensity X-ray source technologies and the growing potential to carry out more complex, longer duration in situ or in operando studies. The tunability of synchrotron beamlines enables the routine application of photon energy-dependent experiments. This work explores the structural stability of [Rh(COD)Cl](2), a widely used catalyst and precursor in the chemical industry, across a range of beamline parameters that target X-ray energies of 8 keV, 15 keV, 18 keV and 25 keV, on a powder X-ray diffraction synchrotron beamline at room temperature. Structural changes are discussed with respect to absorbed X-ray dose at each experimental setting associated with the respective photon energy. In addition, the X-ray radiation hardness of the catalyst is discussed, by utilising the diffraction data collected at the different energies to determine a dose limit, which is often considered in protein crystallography and typically overlooked in small molecule crystallography. This work not only gives fundamental insight into how damage manifests in this organometallic catalyst, but will encourage careful consideration of experimental X-ray parameters before conducting diffraction on similar radiation-sensitive organometallic materials.
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Terms governing use and reproduction
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Terms governing use and reproduction https://creativecommons.org/licenses/by/4.0/This work is licensed under a CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) International license.
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Terms governing use and reproduction https://creativecommons.org/licenses/by/3.0/This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (https://creativecommons.org/licenses/by/3.0/) .
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Language note en
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Genre/form data or focus term Text
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Personal name Bostrom, Hanna L. B.
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9 (RLIN) 2453
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Personal name Murray, Claire A.
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9 (RLIN) 2454
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Personal name Owen, Robin L.
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9 (RLIN) 2455
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Personal name Thompson, Amber L.
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9 (RLIN) 2456
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Personal name Dickerson, Joshua L.
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9 (RLIN) 2457
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Personal name Garman, Elspeth F.
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9 (RLIN) 2458
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Personal name Cairns, Andrew B.
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9 (RLIN) 2459
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Personal name Regoutz, Anna
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9 (RLIN) 2460
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Note Phys Chem Chem Phys
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Uniform Resource Identifier <a href="http://dx.doi.org/10.1039/d2cp03928a">http://dx.doi.org/10.1039/d2cp03928a</a>
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